Improvement in cultivators



R. CRAIG.

Cultivator.

No. 27.406. Patented Mar. 6, 1860.

Inventor:

Witnesses= AM. OOOOOOOOO H0- CD. N.Y. (0S BBBB E's PPPPP SS) tions ofthe shares, feet, and'keys of the culti- UNITED STATES PATENT OFFICE.

ROBERT CRAIG, OF STATE LINE CITY, INDIANA, ASSIGNOB TO HIMSELF AND J. D.LUDLOW, OF SAME PLACE.

IM PROVEMENT IIN CULTIVATORS.

Specification forming part of Letters Patent No. 27,406, dated March 6,1860.

To all whom it may concern:

Be it known that I, ROBERT CRAIG, of State Line City, in the county ofWarren and State of Indiana, have invented a new and ImprovedCultivator; and I do hereby declare that the fbllowingis a full, clear,and exact description of the same, reference being bad to the annexeddrawings, making a part ofthis specification, in which- Figure 1 is aperspective View of my invention; Fig.2, a detached perspective view ofone of the beveled keys by which the shares are adjusted; Figs. 3, 4,and 5, horizontal secvator.

Similar letters of reference indicate corresponding parts in theseveralfigures.

The object of the invention is to adapt one and the same implement forthe various kinds of work required in the cultivation of crops.

To enable those skilled in the art to fully understand and construct myiuvention, I will proceed to describe it.

A A, Fig. 1, represent the two handles of the implement; B B, two beamsattached to the handles and having their front ends attached to adraftbeam, C. The handles A A extend some distance below the beams B Band form feet a a, to which the back shares, D D, are attached. To theback part of the draft-beam C a foot, b, is attached, to the lower endof which the front share, E, is secured. (See Fig. 1.) The feet a a bare braced from the beams B B C by rods 0, in order to secure arequisite degree of strength and stiffness.

The shares D D E are of the usual shovel or cultivator form, and theyare attached to the feet by bolts 61. In case the cultivator is designedfor ordinary worksueh as pulverizing the earth, eradicating weeds, andthe likethe shares D D E are attached directly to the feet square or atright angles by the bolts d,- but in cultivating what are commonlytermed hoed crops that is to say, those which have the earth cast towardand from the plants--- 1 keys F are interposed between the shares andfeet. These keys F are of metal, slightly curved longitudinally, and ofwedge or bevel shape transversely, as shown clearly in Fig. 2. The keyshave also holes 6 made through them to allow the bolts (1 to passthrough, and the upper ends of the keys are each provided with aflange,f, which projects over the top edge of its share.

The keys F are beveled in two different directions-right and 1eftasshown in. Figs. 3 and 4, and by interposing these keys between theshares and the feet an oblique position is given the shares either tothe right or left, as circumstances may require. If, for instance, theearth is to be thrown from the plants, the keys have their thickestendsinward or toward each other, as shown in Figs. 3 and 4; but if theearth'is to be thrown toward the plants the keys are reversed-that is tosay, the one seen in Fig. 3 is applied to Fig. 4, and vice versa. Thisadjustment of the keys reverses the position of the shares D and causesthem to have an oblique position inward. The front share, E, may beadjusted by a key in the same way as the shares D D; or it may have aright angular position with its foot I), as the office of the share E ismerely to pulverize or loosen the soil between the rows.

The flan ges f of the keys F form a bearing for the upper ends of theshares and insure their firm connection to the feet.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

The employment or use of the curved beveled keys F, interposed betweenthe shares and their feet, and secured by the same bolts, d, whichattach the shares to the feet, as and for the purpose specified.

ROBT. CRAIG.

Witnesses:

WM. S. LORING, I. P. PHILLIPS.

